Cheap Flights from Los Angeles (LAX) to Sioux Falls (FSD)

Frequently Asked Questions

• What are the cheapest flights from Los Angeles to Sioux Falls (LAX-FSD)?

  Based on Trip.com data, Frontier Airlines offers one-way fares as low as US$107 on Cheapest nonstop routes (e.g. LAX to FSD on Sun, Mar 8), while United Airlines offers Cheapest nonstop round-trips from US$370 departing on Fri, Mar 20 and returning on Mon, Mar 23.

• When is the best time to book flights from Los Angeles to Sioux Falls?

  By analyzing data from all airlines on the Trip.com flight calendar, it looks like the best time to book a flight from Los Angeles to Sioux Falls is around 40 days (6 weeks) in advance, and the best time to fly is usually on Tuesday, Wednesday, and Saturday. Tuesday typically offers the cheapest flights for departure, while Saturday offers the best return deals.

• How can I find the best deals on flights from Los Angeles to Sioux Falls?

  To find best deals on flights from Los Angeles to Sioux Falls, you can use various tools on Trip.com:
  · Be flexible with your travel dates to get the cheapest flight deal. Now the cheapest flight deal is on Sun, Mar 8, with one-way flights priced at just US$107.
  · Compare airlines strategically. Budget carriers often provide the lowest base fares, while we found the most affordable airline currently operating on this route is Frontier Airlines.
  · Set up price alerts to easily monitor ticket prices without having to check every day.
  · Check Trip.com flight deals and promo codes frequently.
  · Avoid peak season unless you book very early. It seems the peak season for Sioux Falls travel is around July.
  · Get exclusive promo codes for Trip.com app users.

• When are flight tickets from Los Angeles (LAX) to Sioux Falls (FSD) the cheapest?

  The cheapest months to fly from Los Angeles to Sioux Falls is October, when demand for travel is lower.

• Which upcoming date is cheapest to fly from Los Angeles to Sioux Falls on?

  After crunching the numbers on our February flight calendar, it's currently cheapest to fly from Los Angeles to Sioux Falls on February 19, 2026 with Frontier Airlines, with prices starting at US$99.

• Is there any time difference between Los Angeles and Sioux Falls?

  The time difference between Sioux Falls and Los Angeles is 2h.

• How do I change or cancel my ticket from Los Angeles to Sioux Falls?

  Tickets can only be changed or canceled if permitted by airline policy. To submit a change or cancellation request, go to the flight bookings page, select the option to change or cancel your booking, choose the relevant passengers and segment, and submit a request. Please note that additional charges may apply according to the airline ticket policy. However, if the flight has been rescheduled and you would like to change or cancel your ticket, you can submit an involuntary cancellation request. For more details about change and cancellation policies, please check the customer support pages.